/* ════════════════════════════════════════════════════════════
   Student Discussion Board Pro — Public CSS v3.1
   Mobile-first, fully responsive
════════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
  --bg:       #060818;
  --bg2:      #0d1526;
  --bg3:      #111827;
  --card:     #0d1526;
  --border:   rgba(99,102,241,.2);
  --border2:  rgba(255,255,255,.08);
  --primary:  #6366f1;
  --primary2: #8b5cf6;
  --accent:   #a78bfa;
  --text:     #e2e8f0;
  --muted:    #64748b;
  --muted2:   #94a3b8;
  --success:  #10b981;
  --warn:     #f59e0b;
  --danger:   #ef4444;
  --r:        12px;
  --r2:       20px;
  --shadow:   0 20px 60px rgba(0,0,0,.5);
}

/* ── Reset & Base ─────────────────────────────────────────── */
.sdbp-app *,.sdbp-modal * { box-sizing:border-box; margin:0; padding:0; }
.sdbp-app {
  font-family:'Inter',system-ui,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
.sdbp-container { max-width:1100px; margin:0 auto; padding:0 20px; }
.sdbp-section { padding:80px 0; }
h1,h2,h3 { font-family:'Sora',sans-serif; line-height:1.15; }

/* ── Brand ────────────────────────────────────────────────── */
.sdbp-brand-icon { font-size:1.4rem; }
.sdbp-brand-name { font-family:'Sora',sans-serif; font-weight:800; font-size:1.2rem; color:#f1f5f9; }
.sdbp-brand-name span { color:var(--primary); }

/* ════════════════════════════════════════════════════════════
   PUBLIC NAVIGATION
════════════════════════════════════════════════════════════ */
.sdbp-pub-nav {
  position:fixed; top:0; left:0; right:0; z-index:1000;
  background:rgba(6,8,24,.85); backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border2);
  transition:background .3s;
}
.sdbp-pub-nav-inner {
  max-width:1100px; margin:0 auto; padding:0 20px;
  height:64px; display:flex; align-items:center; gap:24px;
}
.sdbp-pub-nav-links { display:flex; gap:24px; margin-left:auto; }
.sdbp-pub-nav-links a { color:var(--muted2); text-decoration:none; font-size:14px; font-weight:500; transition:color .2s; }
.sdbp-pub-nav-links a:hover { color:#fff; }
.sdbp-pub-nav-ctas { display:flex; gap:10px; margin-left:16px; }
.sdbp-nav-login-btn { background:transparent; border:1px solid var(--border); color:var(--muted2); padding:8px 18px; border-radius:8px; font-size:14px; font-weight:600; cursor:pointer; transition:all .2s; }
.sdbp-nav-login-btn:hover { border-color:var(--primary); color:var(--accent); }
.sdbp-nav-register-btn { background:var(--primary); color:#fff; border:none; padding:8px 18px; border-radius:8px; font-size:14px; font-weight:600; cursor:pointer; transition:all .2s; }
.sdbp-nav-register-btn:hover { background:var(--primary2); }

/* Mobile nav */
.sdbp-hamburger { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:4px; margin-left:auto; }
.sdbp-hamburger span { display:block; width:22px; height:2px; background:var(--muted2); border-radius:2px; transition:all .3s; }
.sdbp-hamburger.open span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.sdbp-hamburger.open span:nth-child(2) { opacity:0; }
.sdbp-hamburger.open span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

.sdbp-pub-mobile-nav {
  display:none; flex-direction:column; padding:16px 20px 20px;
  border-top:1px solid var(--border2); background:rgba(6,8,24,.97);
}
.sdbp-pub-mobile-nav.open { display:flex; }
.sdbp-pmn-link { color:var(--muted2); text-decoration:none; font-size:15px; font-weight:500; padding:12px 0; border-bottom:1px solid var(--border2); }
.sdbp-pmn-btn { margin-top:10px; width:100%; justify-content:center; }

/* ════════════════════════════════════════════════════════════
   HERO
════════════════════════════════════════════════════════════ */
.sdbp-hero {
  min-height:100vh; padding:100px 0 80px;
  position:relative; overflow:hidden;
  background:radial-gradient(ellipse 80% 60% at 50% -10%, rgba(99,102,241,.35), transparent 65%), var(--bg);
  display:flex; align-items:center;
}
.sdbp-hero-bg { position:absolute; inset:0; pointer-events:none; }
.sdbp-orb { position:absolute; border-radius:50%; filter:blur(80px); opacity:.3; }
.sdbp-orb-1 { width:500px; height:500px; background:#6366f1; top:-150px; left:-150px; }
.sdbp-orb-2 { width:350px; height:350px; background:#8b5cf6; bottom:-80px; right:-80px; }
.sdbp-orb-3 { width:250px; height:250px; background:#06b6d4; top:50%; left:55%; }

.sdbp-hero-inner {
  display:grid; grid-template-columns:1fr 1fr;
  gap:48px; align-items:center; position:relative; z-index:2;
}
.sdbp-pill {
  display:inline-flex; align-items:center; gap:8px;
  background:rgba(99,102,241,.12); border:1px solid rgba(99,102,241,.3);
  border-radius:100px; padding:6px 16px;
  font-size:13px; font-weight:500; color:var(--accent); margin-bottom:20px;
}
.sdbp-pill-dot { width:7px; height:7px; background:var(--accent); border-radius:50%; animation:sdbpPulse 2s infinite; }
@keyframes sdbpPulse{0%,100%{opacity:1}50%{opacity:.3}}

.sdbp-h1 {
  font-size:clamp(2.2rem,4.5vw,3.6rem); font-weight:800;
  letter-spacing:-.03em; line-height:1.1;
  background:linear-gradient(135deg,#fff 40%,#a78bfa 100%);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  margin-bottom:18px;
}
.sdbp-hero-sub { font-size:1.05rem; color:var(--muted2); margin-bottom:32px; max-width:480px; }
.sdbp-hero-btns { display:flex; gap:12px; flex-wrap:wrap; margin-bottom:28px; }
.sdbp-hero-badges { display:flex; flex-wrap:wrap; gap:10px; }
.sdbp-hero-badges span { font-size:12.5px; color:var(--muted2); background:rgba(255,255,255,.05); border:1px solid var(--border2); border-radius:6px; padding:4px 10px; }

/* Hero preview card */
.sdbp-hero-preview {
  background:rgba(13,21,38,.92); border:1px solid rgba(99,102,241,.3);
  border-radius:var(--r2); backdrop-filter:blur(20px);
  box-shadow:0 32px 80px rgba(0,0,0,.6);
  animation:sdbpFloat 6s ease-in-out infinite;
  overflow:hidden;
}
@keyframes sdbpFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.sdbp-preview-bar { display:flex; align-items:center; gap:6px; padding:12px 16px; border-bottom:1px solid rgba(255,255,255,.07); }
.dot { width:11px; height:11px; border-radius:50%; }
.dot.r { background:#ef4444; } .dot.y { background:#f59e0b; } .dot.g { background:#10b981; }
.sdbp-preview-title { font-size:12px; color:var(--muted); margin-left:6px; }
.sdbp-preview-body { padding:18px; }
.sdbp-preview-greeting { font-weight:700; color:#f1f5f9; font-size:14px; margin-bottom:10px; }
.sdbp-preview-text { font-size:13px; color:var(--muted2); line-height:1.75; margin-bottom:14px; }
.sdbp-preview-tags { display:flex; flex-wrap:wrap; gap:6px; }
.sdbp-preview-tags span { background:rgba(99,102,241,.15); border:1px solid rgba(99,102,241,.25); color:var(--accent); font-size:11px; padding:3px 10px; border-radius:20px; font-weight:500; }
.sdbp-preview-foot { display:flex; align-items:center; justify-content:space-between; padding:12px 16px; border-top:1px solid rgba(255,255,255,.07); }
.sdbp-mini-copy { display:flex; align-items:center; gap:6px; background:linear-gradient(135deg,#6366f1,#8b5cf6); color:#fff; border:none; border-radius:8px; padding:8px 14px; font-size:12px; font-weight:700; cursor:pointer; }
.sdbp-preview-wc { font-size:11px; color:var(--muted); }

/* ════════════════════════════════════════════════════════════
   SECTION COMMONS
════════════════════════════════════════════════════════════ */
.sdbp-section-eyebrow { font-size:12px; font-weight:700; letter-spacing:2px; text-transform:uppercase; color:var(--primary); margin-bottom:10px; }
.sdbp-section-h2 { font-size:clamp(1.8rem,3.5vw,2.6rem); font-weight:800; color:#f1f5f9; margin-bottom:14px; letter-spacing:-.025em; }
.sdbp-section-sub { font-size:1rem; color:var(--muted); margin-bottom:48px; }

/* ════════════════════════════════════════════════════════════
   HOW IT WORKS
════════════════════════════════════════════════════════════ */
.sdbp-how-section { background:linear-gradient(180deg,var(--bg),var(--bg2) 50%,var(--bg)); }
.sdbp-steps { display:grid; grid-template-columns:repeat(4,1fr); gap:0; position:relative; }
.sdbp-steps::before { content:''; position:absolute; top:52px; left:10%; right:10%; height:2px; background:linear-gradient(90deg,transparent,var(--primary) 20%,var(--primary) 80%,transparent); }
.sdbp-step { text-align:center; padding:20px 16px; position:relative; }
.sdbp-step-num { width:36px; height:36px; border-radius:50%; background:var(--primary); color:#fff; font-size:14px; font-weight:800; display:flex; align-items:center; justify-content:center; margin:0 auto 12px; position:relative; z-index:1; box-shadow:0 0 0 6px var(--bg2); }
.sdbp-step-icon { font-size:28px; margin-bottom:10px; }
.sdbp-step-day { font-size:11px; font-weight:700; letter-spacing:1.5px; text-transform:uppercase; color:var(--primary); margin-bottom:6px; }
.sdbp-step h3 { font-size:1rem; color:#f1f5f9; margin-bottom:8px; }
.sdbp-step p { font-size:13.5px; color:var(--muted); line-height:1.65; }

/* ════════════════════════════════════════════════════════════
   FEATURES
════════════════════════════════════════════════════════════ */
.sdbp-feat-section { background:var(--bg); }
.sdbp-feat-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:18px; }
.sdbp-feat { background:var(--card); border:1px solid var(--border); border-radius:var(--r2); padding:26px; transition:all .3s; }
.sdbp-feat:hover { border-color:rgba(99,102,241,.45); transform:translateY(-4px); box-shadow:0 20px 50px rgba(0,0,0,.3); }
.sdbp-feat-emoji { font-size:26px; margin-bottom:12px; }
.sdbp-feat h3 { font-size:.95rem; color:#f1f5f9; margin-bottom:8px; }
.sdbp-feat p { font-size:13.5px; color:var(--muted); line-height:1.65; }

/* ════════════════════════════════════════════════════════════
   PRICING
════════════════════════════════════════════════════════════ */
.sdbp-pricing-section { background:linear-gradient(180deg,var(--bg),var(--bg2) 40%,var(--bg)); }
.sdbp-plans-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(220px,1fr)); gap:18px; margin-bottom:40px; }
.sdbp-plan-card { background:var(--card); border:1px solid var(--border); border-radius:var(--r2); padding:28px 22px; position:relative; transition:all .3s; display:flex; flex-direction:column; }
.sdbp-plan-featured { border-color:var(--primary); background:linear-gradient(135deg,rgba(99,102,241,.12),rgba(139,92,246,.07)); box-shadow:0 0 50px rgba(99,102,241,.18); }
.sdbp-plan-badge { position:absolute; top:-12px; left:50%; transform:translateX(-50%); background:linear-gradient(135deg,#6366f1,#8b5cf6); color:#fff; font-size:11px; font-weight:700; padding:4px 14px; border-radius:20px; white-space:nowrap; }
.sdbp-plan-name { font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:1px; color:var(--muted); margin-bottom:10px; }
.sdbp-plan-price { font-family:'Sora',sans-serif; font-size:2.8rem; font-weight:800; color:#f1f5f9; line-height:1; margin-bottom:22px; }
.sdbp-plan-price sup { font-size:1.1rem; vertical-align:super; }
.sdbp-plan-price sub { font-size:.85rem; color:var(--muted); }
.sdbp-plan-feats { list-style:none; flex:1; display:flex; flex-direction:column; gap:9px; margin-bottom:24px; }
.sdbp-plan-feats li { font-size:13.5px; color:var(--muted2); display:flex; align-items:center; gap:8px; }
.ck { color:var(--success); font-weight:800; }
.nx { color:#334155; font-weight:800; }
.sdbp-plan-btn { width:100%; padding:12px; border-radius:10px; font-weight:700; font-size:14px; cursor:pointer; transition:all .25s; font-family:inherit; }

/* Managed banner */
.sdbp-managed-banner {
  background:linear-gradient(135deg,rgba(99,102,241,.12),rgba(139,92,246,.08));
  border:1px solid rgba(99,102,241,.35); border-radius:var(--r2);
  overflow:hidden; margin-top:8px;
}
.sdbp-managed-inner { display:grid; grid-template-columns:1fr auto; gap:0; }
.sdbp-managed-left { padding:36px; }
.sdbp-managed-tag { display:inline-block; background:rgba(245,158,11,.15); border:1px solid rgba(245,158,11,.3); color:var(--warn); font-size:11px; font-weight:700; padding:3px 12px; border-radius:20px; margin-bottom:14px; }
.sdbp-managed-left h3 { font-size:1.4rem; color:#f1f5f9; margin-bottom:10px; }
.sdbp-managed-left h3 span { color:var(--accent); }
.sdbp-managed-left > p { font-size:14px; color:var(--muted2); margin-bottom:20px; line-height:1.7; }
.sdbp-managed-perks { display:grid; grid-template-columns:1fr 1fr; gap:8px; }
.sdbp-perk { display:flex; align-items:flex-start; gap:8px; font-size:13.5px; color:var(--muted2); }
.sdbp-perk span { color:var(--success); font-weight:700; flex-shrink:0; }
.sdbp-managed-right { background:rgba(0,0,0,.2); border-left:1px solid rgba(99,102,241,.2); padding:36px 28px; display:flex; align-items:center; min-width:240px; }
.sdbp-managed-price-box { text-align:center; width:100%; }
.sdbp-managed-amount { font-family:'Sora',sans-serif; font-size:2.8rem; font-weight:800; color:#f1f5f9; margin-bottom:8px; }
.sdbp-managed-amount span { font-size:1rem; color:var(--muted); }
.sdbp-managed-desc { font-size:13px; color:var(--muted); margin-bottom:20px; line-height:1.5; }
.sdbp-managed-reassure { display:flex; flex-direction:column; gap:6px; margin-top:14px; }
.sdbp-managed-reassure span { font-size:12px; color:var(--muted); }

/* ════════════════════════════════════════════════════════════
   TESTIMONIALS
════════════════════════════════════════════════════════════ */
.sdbp-testi-section { background:var(--bg); }
.sdbp-testi-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:18px; }
.sdbp-testi { background:var(--card); border:1px solid var(--border); border-radius:var(--r2); padding:26px; }
.sdbp-testi-stars { color:var(--warn); font-size:17px; letter-spacing:3px; margin-bottom:12px; }
.sdbp-testi p { font-size:14px; color:var(--muted2); font-style:italic; line-height:1.7; margin-bottom:18px; }
.sdbp-testi-author { display:flex; align-items:center; gap:12px; }
.sdbp-flag { font-size:22px; }
.sdbp-testi-author strong { display:block; color:#f1f5f9; font-size:14px; }
.sdbp-testi-author small { font-size:12px; color:var(--muted); }

/* ════════════════════════════════════════════════════════════
   CTA SECTION + FOOTER
════════════════════════════════════════════════════════════ */
.sdbp-cta-section { padding:100px 0; background:radial-gradient(ellipse 70% 80% at 50%,rgba(99,102,241,.2),transparent); border-top:1px solid var(--border); }
.sdbp-footer { background:#030611; border-top:1px solid rgba(255,255,255,.05); padding:40px 0; text-align:center; }
.sdbp-footer .sdbp-brand { display:flex; align-items:center; justify-content:center; gap:8px; margin-bottom:12px; }
.sdbp-footer p { font-size:13px; color:var(--muted); margin-bottom:6px; }

/* ════════════════════════════════════════════════════════════
   BUTTONS
════════════════════════════════════════════════════════════ */
.sdbp-btn { display:inline-flex; align-items:center; justify-content:center; gap:7px; border-radius:10px; font-family:inherit; font-weight:600; font-size:14px; cursor:pointer; border:none; transition:all .22s; text-decoration:none; white-space:nowrap; }
.sdbp-btn-primary { background:linear-gradient(135deg,#6366f1,#8b5cf6); color:#fff; box-shadow:0 4px 20px rgba(99,102,241,.35); }
.sdbp-btn-primary:hover { opacity:.9; transform:translateY(-2px); box-shadow:0 8px 30px rgba(99,102,241,.5); }
.sdbp-btn-ghost { background:rgba(255,255,255,.07); border:1px solid rgba(255,255,255,.12); color:var(--text); }
.sdbp-btn-ghost:hover { background:rgba(255,255,255,.12); }
.sdbp-btn-outline { background:transparent; border:1px solid var(--border); color:var(--text); }
.sdbp-btn-outline:hover { background:rgba(99,102,241,.1); border-color:var(--primary); }
.sdbp-btn-lg { padding:14px 28px; font-size:15px; border-radius:12px; }
.sdbp-btn-sm { padding:8px 16px; font-size:13px; }
.sdbp-btn-full { width:100%; }

/* ════════════════════════════════════════════════════════════
   MODALS
════════════════════════════════════════════════════════════ */
.sdbp-modal { display:none; position:fixed; inset:0; z-index:9999; align-items:center; justify-content:center; padding:16px; }
.sdbp-modal.open { display:flex; }
.sdbp-modal-bg { position:absolute; inset:0; background:rgba(0,0,0,.75); backdrop-filter:blur(6px); }
.sdbp-modal-box {
  position:relative; background:#1a2540; border:1px solid var(--border);
  border-radius:var(--r2); padding:36px; width:100%; max-width:460px;
  box-shadow:0 40px 100px rgba(0,0,0,.7); max-height:90vh; overflow-y:auto;
  animation:sdbpSlideUp .3s ease;
}
@keyframes sdbpSlideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.sdbp-modal-x { position:absolute; top:14px; right:16px; background:none; border:none; color:var(--muted); font-size:20px; cursor:pointer; line-height:1; padding:4px; }
.sdbp-modal-x:hover { color:#fff; }
.sdbp-modal-brand { font-size:1.1rem; margin-bottom:10px; color:var(--muted2); }
.sdbp-modal-box h3 { font-family:'Sora',sans-serif; font-size:1.4rem; color:#f1f5f9; margin-bottom:6px; }
.sdbp-modal-sub { font-size:14px; color:var(--muted); margin-bottom:24px; }
.sdbp-modal-switch { text-align:center; font-size:13px; color:var(--muted); margin-top:16px; }
.sdbp-modal-switch a { color:var(--primary); text-decoration:none; font-weight:600; }
.sdbp-modal-fine { text-align:center; font-size:12px; color:var(--muted); margin-top:10px; }
.sdbp-modal-fine a { color:var(--muted); }
.sdbp-auth-msg { border-radius:8px; padding:12px 14px; font-size:14px; margin-bottom:14px; }
.sdbp-auth-msg.success { background:rgba(16,185,129,.12); border:1px solid rgba(16,185,129,.3); color:var(--success); }
.sdbp-auth-msg.error { background:rgba(239,68,68,.12); border:1px solid rgba(239,68,68,.3); color:var(--danger); }

/* ════════════════════════════════════════════════════════════
   FORMS (shared)
════════════════════════════════════════════════════════════ */
.sdbp-form-row { margin-bottom:18px; }
.sdbp-form-row label { display:block; font-size:13px; font-weight:600; color:#cbd5e1; margin-bottom:6px; }
.opt { font-weight:400; color:var(--muted); font-size:12px; }
.req { color:var(--danger); }
.sdbp-input,.sdbp-textarea,.sdbp-select {
  width:100%; background:#0a1120; border:1px solid rgba(255,255,255,.1);
  border-radius:10px; color:var(--text); padding:11px 14px;
  font-size:14px; font-family:inherit; transition:border-color .2s;
}
.sdbp-input:focus,.sdbp-textarea:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px rgba(99,102,241,.15); }
.sdbp-textarea { resize:vertical; min-height:100px; }
.sdbp-pw-wrap { position:relative; }
.sdbp-pw-toggle { position:absolute; right:12px; top:50%; transform:translateY(-50%); background:none; border:none; cursor:pointer; font-size:16px; color:var(--muted); padding:4px; }
.sdbp-field-note { font-size:12px; color:var(--muted); margin-top:4px; display:block; }
.sdbp-form-row-half { display:grid; grid-template-columns:1fr 1fr; gap:16px; }

/* ════════════════════════════════════════════════════════════
   DASHBOARD TOP NAV
════════════════════════════════════════════════════════════ */
.sdbp-topnav {
  position:sticky; top:0; z-index:500;
  background:rgba(6,8,24,.95); backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border2);
}
.sdbp-topnav-inner {
  max-width:1200px; margin:0 auto; padding:0 20px;
  height:60px; display:flex; align-items:center; gap:16px;
}
.sdbp-topnav-brand { display:flex; align-items:center; gap:8px; flex-shrink:0; }
.sdbp-topnav-links { display:flex; gap:4px; margin-left:auto; }
.sdbp-tnav {
  padding:7px 14px; border-radius:8px; font-size:13.5px; font-weight:500;
  color:var(--muted); text-decoration:none; cursor:pointer; transition:all .2s;
  background:none; border:none; font-family:inherit;
}
.sdbp-tnav:hover,.sdbp-tnav.active { background:rgba(99,102,241,.15); color:var(--accent); }
.sdbp-tnav-logout { color:var(--danger) !important; }
.sdbp-topnav-user { display:flex; align-items:center; gap:10px; margin-left:16px; flex-shrink:0; }
.sdbp-user-avatar { width:36px; height:36px; border-radius:50%; background:linear-gradient(135deg,#6366f1,#8b5cf6); color:#fff; font-size:14px; font-weight:800; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.sdbp-user-info { display:flex; flex-direction:column; }
.sdbp-user-name { font-size:13px; font-weight:600; color:#f1f5f9; line-height:1.2; }
.sdbp-user-plan { font-size:11px; color:var(--muted); }
.sdbp-logout-btn { background:none; border:none; cursor:pointer; color:var(--muted); padding:6px; border-radius:6px; transition:all .2s; display:flex; align-items:center; }
.sdbp-logout-btn:hover { color:var(--danger); background:rgba(239,68,68,.1); }
.sdbp-mobile-nav { display:none; flex-direction:column; padding:12px 20px 16px; border-top:1px solid var(--border2); background:rgba(6,8,24,.98); }
.sdbp-mobile-nav.open { display:flex; }
.sdbp-mobile-nav .sdbp-tnav { padding:12px 14px; border-bottom:1px solid var(--border2); border-radius:0; }

/* ════════════════════════════════════════════════════════════
   DASHBOARD CONTENT
════════════════════════════════════════════════════════════ */
.sdbp-dash-main { max-width:900px; margin:0 auto; padding:32px 20px 60px; }
.sdbp-alert { padding:14px 18px; border-radius:10px; font-size:14px; margin-bottom:24px; }
.sdbp-alert-success { background:rgba(16,185,129,.1); border:1px solid rgba(16,185,129,.3); color:var(--success); }
.sdbp-credit-strip { display:none; align-items:center; justify-content:space-between; background:var(--card); border:1px solid var(--border); border-radius:10px; padding:10px 16px; margin-bottom:24px; font-size:13px; }
.sdbp-credit-plan { background:rgba(99,102,241,.2); color:var(--accent); font-weight:700; padding:3px 10px; border-radius:20px; font-size:11px; }
.sdbp-credit-count { color:var(--muted2); display:flex; align-items:center; gap:5px; }

/* Panels */
.sdbp-panel { display:none; }
.sdbp-panel.active { display:block; }
.sdbp-panel-hdr { margin-bottom:24px; }
.sdbp-panel-hdr h2 { font-size:1.5rem; color:#f1f5f9; margin-bottom:6px; }
.sdbp-panel-hdr p { font-size:14px; color:var(--muted); }
.sdbp-form-card { background:var(--card); border:1px solid var(--border); border-radius:var(--r2); padding:28px; }
.sdbp-form-btns { display:flex; gap:12px; flex-wrap:wrap; margin-top:4px; }

/* Result zone */
.sdbp-result-zone { background:#080f1f; border:1px solid var(--border); border-radius:var(--r); padding:20px; margin-top:16px; }
.sdbp-result-text { white-space:pre-wrap; font-size:14px; line-height:1.8; color:var(--text); }
.sdbp-copy-btn {
  display:inline-flex; align-items:center; gap:7px; margin-top:14px;
  background:linear-gradient(135deg,#6366f1,#8b5cf6); color:#fff;
  border:none; border-radius:8px; padding:10px 18px;
  font-size:13px; font-weight:700; cursor:pointer; font-family:inherit; transition:all .2s;
}
.sdbp-copy-btn:hover { opacity:.9; }
.sdbp-copy-btn.copied { background:var(--success); }

/* Post cards */
.sdbp-posts-list { display:flex; flex-direction:column; gap:16px; }
.sdbp-post-card { background:var(--card); border:1px solid var(--border); border-radius:var(--r2); padding:22px; }
.sdbp-post-meta { display:flex; align-items:flex-start; justify-content:space-between; gap:12px; margin-bottom:8px; }
.sdbp-post-meta h3 { font-size:1rem; color:#f1f5f9; }
.sdbp-badge { font-size:11px; font-weight:700; padding:3px 10px; border-radius:20px; flex-shrink:0; }
.sdbp-badge-green  { background:rgba(16,185,129,.15); color:var(--success); }
.sdbp-badge-orange { background:rgba(245,158,11,.15); color:var(--warn); }
.sdbp-badge-blue   { background:rgba(99,102,241,.15); color:var(--accent); }
.sdbp-badge-red    { background:rgba(239,68,68,.15); color:var(--danger); }
.sdbp-badge-gray   { background:rgba(255,255,255,.07); color:var(--muted); }
.sdbp-post-snippet { font-size:13px; color:var(--muted); margin-bottom:14px; line-height:1.6; }
.sdbp-output-box { background:#080f1f; border:1px solid rgba(255,255,255,.07); border-radius:10px; padding:16px; }
.sdbp-output-text { font-size:13.5px; line-height:1.8; color:var(--muted2); white-space:pre-wrap; max-height:320px; overflow-y:auto; }

/* Empty state */
.sdbp-empty { text-align:center; padding:80px 20px; }
.sdbp-empty-emoji { font-size:48px; margin-bottom:16px; }
.sdbp-empty h3 { font-family:'Sora',sans-serif; color:#f1f5f9; margin-bottom:8px; }
.sdbp-empty p { color:var(--muted); font-size:14px; margin-bottom:24px; }

/* ════════════════════════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════════════════════════ */
@media(max-width:960px){
  .sdbp-hero-inner { grid-template-columns:1fr; text-align:center; }
  .sdbp-hero-text { order:1; }
  .sdbp-hero-card-wrap { order:0; }
  .sdbp-hero-sub,.sdbp-hero-btns,.sdbp-hero-badges { margin-left:auto; margin-right:auto; justify-content:center; }
  .sdbp-hero-preview { max-width:420px; margin:0 auto; }
  .sdbp-steps { grid-template-columns:1fr 1fr; }
  .sdbp-steps::before { display:none; }
  .sdbp-managed-inner { grid-template-columns:1fr; }
  .sdbp-managed-right { border-left:none; border-top:1px solid rgba(99,102,241,.2); }
  .sdbp-managed-perks { grid-template-columns:1fr; }
}
@media(max-width:768px){
  .sdbp-pub-nav-links,.sdbp-pub-nav-ctas { display:none; }
  .sdbp-hamburger { display:flex; }
  .sdbp-topnav-links { display:none; }
  .sdbp-topnav-user .sdbp-user-info { display:none; }
  .sdbp-hamburger { display:flex; margin-left:auto; }
  .sdbp-credit-strip { display:flex; }
  .sdbp-form-row-half { grid-template-columns:1fr; }
  .sdbp-plans-grid { grid-template-columns:1fr 1fr; }
  .sdbp-managed-left { padding:24px; }
  .sdbp-managed-right { padding:24px; }
}
@media(max-width:560px){
  .sdbp-section { padding:60px 0; }
  .sdbp-steps { grid-template-columns:1fr; }
  .sdbp-plans-grid { grid-template-columns:1fr; }
  .sdbp-feat-grid { grid-template-columns:1fr; }
  .sdbp-testi-grid { grid-template-columns:1fr; }
  .sdbp-modal-box { padding:24px 18px; }
  .sdbp-form-card { padding:18px; }
  .sdbp-hero { padding:80px 0 60px; }
  .sdbp-hero-btns { flex-direction:column; align-items:center; }
  .sdbp-btn-lg { width:100%; }
  .sdbp-dash-main { padding:20px 14px 50px; }
}

/* ════════════════════════════════════════════════════════════
   UPLOAD PANEL — Step Indicator, Generating State, Preview
════════════════════════════════════════════════════════════ */

/* Step indicator */
.sdbp-step-indicator {
  display:flex; align-items:center; gap:0; margin-bottom:24px;
  padding:18px 20px; background:var(--bg2);
  border:1px solid var(--border2); border-radius:var(--r); overflow-x:auto;
}
.sdbp-step-dot {
  display:flex; align-items:center; gap:10px; font-size:13px; font-weight:600;
  color:var(--muted); white-space:nowrap; flex-shrink:0; transition:color .3s;
}
.sdbp-step-dot span {
  width:30px; height:30px; border-radius:50%; border:2px solid #334155;
  display:inline-flex; align-items:center; justify-content:center;
  font-size:12px; font-weight:800; color:var(--muted); flex-shrink:0;
  transition:all .3s; background:var(--bg);
}
.sdbp-step-dot.active { color:#f1f5f9; }
.sdbp-step-dot.active span {
  background:linear-gradient(135deg,#6366f1,#8b5cf6);
  border-color:#6366f1; color:#fff;
  box-shadow:0 0 0 4px rgba(99,102,241,.2);
}
.sdbp-step-dot.done { color:var(--success); }
.sdbp-step-dot.done span {
  background:var(--success); border-color:var(--success); color:#fff;
}
.sdbp-step-line {
  flex:1; height:2px; min-width:16px; margin:0 10px;
  background:linear-gradient(90deg,var(--border),#334155);
  border-radius:2px;
}

/* Char count */
.sdbp-prompt-chars { font-size:12px; color:var(--muted); text-align:right; margin-top:5px; }

/* Inline message */
.sdbp-upload-inline-msg { margin-top:12px; padding:12px 14px; border-radius:8px; font-size:14px; }
.sdbp-upload-inline-msg.success { background:rgba(16,185,129,.1); border:1px solid rgba(16,185,129,.3); color:var(--success); }
.sdbp-upload-inline-msg.error   { background:rgba(239,68,68,.1); border:1px solid rgba(239,68,68,.3); color:var(--danger); }

/* Duplicate warning */
.sdbp-duplicate-warn {
  background:rgba(245,158,11,.08); border:1px solid rgba(245,158,11,.35);
  border-radius:12px; padding:16px 18px; margin-bottom:18px;
  display:flex; align-items:flex-start; gap:12px; flex-wrap:wrap;
}
.sdbp-dup-icon { font-size:22px; flex-shrink:0; }
.sdbp-dup-text { flex:1; min-width:200px; }
.sdbp-dup-text strong { color:var(--warn); font-size:14px; display:block; margin-bottom:4px; }
.sdbp-dup-text p { font-size:13px; color:var(--muted2); margin:0; }
.sdbp-dup-actions { display:flex; gap:8px; align-items:center; flex-shrink:0; }
.sdbp-btn-danger { background:var(--danger); color:#fff; border:none; }
.sdbp-btn-danger:hover { background:#dc2626; }

/* Generating state */
.sdbp-generating-state {
  background:var(--card); border:1px solid var(--border); border-radius:var(--r2);
  padding:36px 28px 28px; margin-top:0; text-align:center;
}
/* Header: orb + title */
.sdbp-gen-header { display:flex; align-items:center; justify-content:center; gap:20px; margin-bottom:26px; flex-wrap:wrap; }
.sdbp-gen-orb { position:relative; width:56px; height:56px; flex-shrink:0; display:flex; align-items:center; justify-content:center; }
.sdbp-orb-ring { position:absolute; inset:0; border-radius:50%; border:2px solid transparent; }
.sdbp-orb-r1 { border-top-color:rgba(99,102,241,.95); animation:sdbpOrb 1.4s linear infinite; }
.sdbp-orb-r2 { inset:7px; border-right-color:rgba(139,92,246,.7); animation:sdbpOrb 2s linear infinite reverse; }
.sdbp-orb-r3 { inset:14px; border-bottom-color:rgba(99,102,241,.45); animation:sdbpOrb 2.8s linear infinite; }
@keyframes sdbpOrb { to { transform:rotate(360deg); } }
.sdbp-orb-icon { color:var(--accent); animation:sdbpPulse 2s ease-in-out infinite; flex-shrink:0; }
@keyframes sdbpPulse { 0%,100%{opacity:.6;transform:scale(.95)} 50%{opacity:1;transform:scale(1.07)} }
.sdbp-gen-title-block { text-align:left; }
.sdbp-gen-title-block strong { display:block; color:#f1f5f9; font-size:1.05rem; font-weight:600; margin-bottom:5px; }
.sdbp-gen-status-wrap { font-size:13px; color:var(--muted); display:inline-block; }
.sdbp-cursor { color:var(--accent); animation:sdbpBlink .8s step-end infinite; margin-left:2px; }
@keyframes sdbpBlink { 0%,100%{opacity:1} 50%{opacity:0} }
/* Progress bar */
.sdbp-gen-bar-row { display:flex; align-items:center; gap:12px; margin-bottom:22px; }
.sdbp-gen-bar-track { flex:1; height:5px; background:rgba(99,102,241,.12); border-radius:99px; overflow:hidden; position:relative; }
.sdbp-gen-bar-fill { height:100%; width:0%; border-radius:99px; background:linear-gradient(90deg,#6366f1,#8b5cf6); background-size:200% 100%; transition:width .7s cubic-bezier(.4,0,.2,1); animation:sdbpShimmer 1.8s linear infinite; }
@keyframes sdbpShimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }
.sdbp-gen-elapsed { font-size:12px; color:var(--muted); min-width:28px; text-align:right; flex-shrink:0; font-variant-numeric:tabular-nums; }
/* Steps */
.sdbp-gen-steps-list { display:flex; flex-direction:column; gap:8px; max-width:420px; margin:0 auto 18px; }
.sdbp-gstep { display:flex; align-items:center; gap:10px; background:var(--bg2); border:1px solid var(--border2); border-radius:8px; padding:10px 14px; font-size:13.5px; color:var(--muted); text-align:left; transition:all .4s ease; }
.sdbp-gstep-icon { flex-shrink:0; font-size:15px; }
.sdbp-gstep-text { flex:1; }
.sdbp-gstep-check { color:var(--success); font-size:13px; font-weight:700; opacity:0; transition:opacity .3s ease; flex-shrink:0; }
.sdbp-gstep.active { border-color:rgba(99,102,241,.5); color:var(--accent); background:rgba(99,102,241,.1); box-shadow:0 0 0 1px rgba(99,102,241,.1); }
.sdbp-gstep.active .sdbp-gstep-icon { animation:sdbpPulse 1.4s ease-in-out infinite; display:inline-block; }
.sdbp-gstep.done { border-color:rgba(16,185,129,.3); color:var(--success); background:rgba(16,185,129,.06); }
.sdbp-gstep.done .sdbp-gstep-check { opacity:1; }
.sdbp-gen-footnote { font-size:12px; color:var(--muted); opacity:.65; margin:0; }

/* Preview panel */
.sdbp-preview-panel {
  background:var(--card); border:1px solid rgba(99,102,241,.35);
  border-radius:var(--r2); overflow:hidden;
  box-shadow:0 0 40px rgba(99,102,241,.12);
  animation:sdbpSlideUp .4s ease;
}
.sdbp-preview-header {
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px;
  padding:18px 24px; border-bottom:1px solid var(--border2);
  background:linear-gradient(135deg,rgba(99,102,241,.1),rgba(139,92,246,.07));
}
.sdbp-preview-meta { display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.sdbp-preview-label { font-family:'Sora',sans-serif; font-weight:700; color:#f1f5f9; font-size:14px; }
.sdbp-preview-wc-badge {
  background:rgba(99,102,241,.2); border:1px solid rgba(99,102,241,.3);
  color:var(--accent); font-size:11px; font-weight:700; padding:3px 10px; border-radius:20px;
}
.sdbp-preview-status-badge {
  background:rgba(16,185,129,.15); border:1px solid rgba(16,185,129,.3);
  color:var(--success); font-size:11px; font-weight:700; padding:3px 10px; border-radius:20px;
}
.sdbp-preview-actions { display:flex; gap:8px; flex-wrap:wrap; }
.sdbp-preview-body-box { padding:24px; max-height:480px; overflow-y:auto; }
.sdbp-preview-post-text {
  font-size:14.5px; line-height:1.85; color:var(--text);
  white-space:pre-wrap; font-family:'Inter',sans-serif;
}
.sdbp-preview-footer {
  display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:10px;
  padding:14px 24px; border-top:1px solid var(--border2);
  background:rgba(0,0,0,.15);
}
.sdbp-preview-checklist { display:flex; gap:12px; flex-wrap:wrap; }
.sdbp-chk { font-size:12px; color:var(--success); font-weight:500; }

@media(max-width:600px){
  .sdbp-preview-header { flex-direction:column; align-items:flex-start; }
  .sdbp-preview-actions { width:100%; }
  .sdbp-preview-actions .sdbp-btn { flex:1; }
  .sdbp-step-indicator { gap:4px; }
  .sdbp-step-dot { font-size:11px; }
  .sdbp-step-line { min-width:10px; }
  .sdbp-preview-checklist { gap:8px; }
  .sdbp-chk { font-size:11px; }
}

/* ════════════════════════════════════════════════════════════
   NEW FEATURES CSS — OCR, Regenerate, Grade, History
════════════════════════════════════════════════════════════ */

/* OCR button */
.sdbp-ocr-btn {
  float:right; background:rgba(99,102,241,.12); border:1px solid rgba(99,102,241,.3);
  color:var(--accent); border-radius:8px; padding:4px 10px; font-size:12px; font-weight:600;
  cursor:pointer; font-family:inherit; transition:all .2s;
}
.sdbp-ocr-btn:hover { background:rgba(99,102,241,.22); }

/* Post actions row */
.sdbp-post-actions { display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-top:14px; }

/* Regenerate button */
.sdbp-regen-btn { opacity:.85; }
.sdbp-regen-btn:hover { opacity:1; }
.sdbp-regen-btn:disabled { opacity:.4; cursor:not-allowed; }

/* Grade entry */
.sdbp-grade-entry {
  display:flex; align-items:center; gap:8px; flex-wrap:wrap;
  margin-top:12px; padding:10px 14px;
  background:rgba(245,158,11,.06); border:1px solid rgba(245,158,11,.2); border-radius:10px;
}
.sdbp-grade-label { font-size:13px; font-weight:600; color:var(--warn); }
.sdbp-grade-input {
  width:70px; background:#0a1120; border:1px solid rgba(245,158,11,.3);
  border-radius:8px; color:var(--text); padding:6px 10px; font-size:14px; font-weight:700;
  text-align:center; font-family:inherit;
}
.sdbp-grade-input:focus { outline:none; border-color:var(--warn); }
.sdbp-grade-suffix { font-size:13px; color:var(--muted); }
.sdbp-save-grade-btn { background:var(--warn); color:#000; font-weight:700; border:none; }
.sdbp-save-grade-btn:hover { background:#d97706; }
.sdbp-grade-saved { font-size:13px; color:var(--warn); font-weight:700; }

/* History stats */
.sdbp-history-stats {
  display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:28px;
}
.sdbp-hstat-card {
  background:var(--card); border:1px solid var(--border); border-radius:var(--r2);
  padding:20px 14px; text-align:center; transition:all .3s;
}
.sdbp-hstat-card:hover { border-color:rgba(99,102,241,.4); transform:translateY(-3px); }
.sdbp-hstat-icon { font-size:24px; margin-bottom:8px; }
.sdbp-hstat-val { font-family:'Sora',sans-serif; font-size:1.8rem; font-weight:800; color:#f1f5f9; line-height:1; margin-bottom:4px; }
.sdbp-hstat-lbl { font-size:12px; color:var(--muted); }

/* Grade chart */
.sdbp-grade-chart-wrap { background:var(--card); border:1px solid var(--border); border-radius:var(--r2); padding:24px; margin-bottom:24px; }
.sdbp-grade-chart-wrap h3 { font-family:'Sora',sans-serif; color:#f1f5f9; margin:0 0 16px; font-size:1rem; }
.sdbp-grade-chart { display:flex; align-items:flex-end; gap:8px; height:100px; }
.sdbp-grade-bar-wrap { display:flex; flex-direction:column; align-items:center; gap:4px; flex:1; }
.sdbp-grade-bar {
  width:100%; border-radius:6px 6px 0 0; min-height:4px;
  background:linear-gradient(180deg,#6366f1,#8b5cf6); transition:height .5s ease;
  position:relative; cursor:pointer;
}
.sdbp-grade-bar:hover::after {
  content:attr(data-grade)'%'; position:absolute; top:-24px; left:50%;
  transform:translateX(-50%); background:#1e293b; color:#f1f5f9;
  font-size:11px; padding:2px 6px; border-radius:4px; white-space:nowrap;
}
.sdbp-grade-bar-lbl { font-size:10px; color:var(--muted); text-align:center; line-height:1.2; }

/* History list */
.sdbp-history-item {
  background:var(--card); border:1px solid var(--border); border-radius:var(--r2);
  padding:18px 20px; margin-bottom:12px; transition:all .2s;
}
.sdbp-history-item:hover { border-color:rgba(99,102,241,.3); }
.sdbp-history-meta { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:8px; margin-bottom:10px; }
.sdbp-history-week { font-family:'Sora',sans-serif; font-weight:700; color:#f1f5f9; font-size:.95rem; }
.sdbp-history-right { display:flex; align-items:center; gap:10px; }
.sdbp-grade-pill {
  background:rgba(245,158,11,.15); border:1px solid rgba(245,158,11,.3);
  color:var(--warn); font-size:13px; font-weight:800; padding:4px 12px; border-radius:20px;
}
.sdbp-grade-pill.high { background:rgba(16,185,129,.15); border-color:rgba(16,185,129,.3); color:var(--success); }
.sdbp-history-preview { font-size:13px; color:var(--muted); line-height:1.6; margin-bottom:12px; }
.sdbp-history-actions { display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.sdbp-loading { text-align:center; padding:40px; color:var(--muted); font-size:14px; }

/* Responsive new features */
@media(max-width:768px){
  .sdbp-history-stats { grid-template-columns:repeat(2,1fr); }
  .sdbp-grade-chart { height:70px; gap:4px; }
}
@media(max-width:480px){
  .sdbp-history-stats { grid-template-columns:repeat(2,1fr); gap:10px; }
  .sdbp-post-actions { flex-direction:column; align-items:flex-start; }
  .sdbp-grade-entry { gap:6px; }
  .sdbp-ocr-btn { float:none; display:inline-block; margin-top:6px; }
}